Improvement in gang-plows



E G. JONES.

steam'Plow.

Patented Dec 1. 1857 4 PETERS. PHOTO-UTHOGRAPHER WASHINGTON D c UNITEDSTATES PATENT OFFIC EDWARD G. JONES, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN GANG-PLOWS.

Specification forming part of Letters Patent No. 18,749, dated December1, 1857.

To all whom it may concern.-

- Be it known that I, EDWARD (J. JONES, of

Pittsburg, in the county of Allegheny and State of Pennsylvania, haveinvented a new and useful Improvement in Gang-Flows Propelled bySteam-Power and I do hereby declare that the following is a full, clear,and exact description of the construction and operation of the same.

The nature of myinvention consists in coupling the plows constituting agang to a front and back bar hung to the back end of asteamcarriage insuch a manner that the said bars can be raised or lowered at their endsby means of rack-rods, levers, or other equivalent means, for thepurpose of adjusting the depth of the furrows cut by the plows, and inconnecting, further, the whole gang of plows with the steam-carriage, sothat the position of the same adapts itself to the undulations in thesurface of the ground to be plowed. To show this arrangement more fullyI will proceed to describe the accompanying drawings, which form a partof this specification, andin which- Figure l is a perspective view; Fig.2,a top view, and Fig. 3 a diagram showing the manner in which the plowsadapt themselves to the unevenness in the ground.

111 all these figures the same letters of reference are marked on likeparts.

A represents the frame of a steam-carriage.

B B are the wheels of the carriage. There is no boiler, engine, or anyother part for the propelling and steering of the carriage shown in thedrawings, as the same have no reference to my invention.

G O are beams at the back end of the car'- riage, which are attached tothe frame A by hinges a a.

D D D D are springs above and below the beams C O.

E E are rack-rods passing through the frame A and beams O G.

F F are toothed segment-levers gearing into the racks E Eand supportedby the bearings 01 d.

G is a bar fastened to the racks E E, and H another bar connected withthe racks E E.

J J are the plows; K K, the plow-beams, the back ends of which passthrough proper openings in the bar H, and are sufficiently wide toinsure a steady position of the plows vertically. The front ends of theplow-beams are connected with the barG by means of the links b I),hooked into holes 0 c. There is a sufiicient number of these holesprovided in the bar G for the purpose of enabling me to give the plowsany desired position laterally, so as to form more orless of an anglewith the line of draft, whereby they take more or less land.

The operation of the described machine is as follows: By turning thesegment-levers F F up or down the bars G and H are lowered or raised.and as the four levers F F are independent from each other, it isobvious that by their means either of the sides of the gang, or thefront or back of it, or the whole gang, may be raised or lowered. Inthis waya perfect control is had over the position of the plows, (inorder to cut furrows of more or less depth,) or to lift the same overobstructions, such as stumps, rocks, 860. The arrangement of the hingedbeams O G and springs D D is for the purpose of allowing the gang toadapt itself to any undulations in the ground to be plowed. When themachine moves over level ground the springs D D keep the beams O O insuch a position that the soles of the plows are horizontal but if anabrupt fall or descent oceursin the ground, so that the carriage getsinto a lower position in relation to the gang, as is indicated in Fig.3,the beams G (3 will be pressed against the springs D D by the resistanceof the ground under the soles of the plows. The springs D D, yielding,will allow the beams O O, and with the same the whole gang, to adopt theposition as shown in Fig. 3, in which the sole of the plows is nothorizontal any more, but follows the descent in the ground.Thearrangementofthe hingedbeams O O and springs D D prevents at thesametime the breaking of the plows or of parts connected therewith, whichwould occur in consequence of the pressure or resistance of the groundon the sole of the plows in an abrupt descent of the surface, astheyyield to the said pressure. If an abrupt rise occurs in the ground to beplowed, the beams O G will bear against thelower springs ,DD,which inyielding will allow the gang to accommodate itself to the ascent of theground in a similar manner, as above described.

Having thus fully described my improveforth.

rods E E and segment-levers F F, or any equivalent meansin their place,substantially in the manner and for the purpose herein set EDVV, O.JONES.

Witnesses:

J OHN A. MARTIN, HENRY MOSER.

